CN107983320A - Preparation method of difunctional film removed for formaldehyde and products thereof and application - Google Patents
Preparation method of difunctional film removed for formaldehyde and products thereof and application Download PDFInfo
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- CN107983320A CN107983320A CN201711167309.XA CN201711167309A CN107983320A CN 107983320 A CN107983320 A CN 107983320A CN 201711167309 A CN201711167309 A CN 201711167309A CN 107983320 A CN107983320 A CN 107983320A
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- activated carbon
- formaldehyde
- preparation
- rare earth
- modified
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000010041 electrostatic spinning Methods 0.000 claims abstract description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 23
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 19
- 239000011572 manganese Substances 0.000 claims abstract description 19
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 6
- 230000003647 oxidation Effects 0.000 claims abstract description 3
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 150000002910 rare earth metals Chemical group 0.000 claims description 7
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 11
- 238000012986 modification Methods 0.000 description 11
- 229910052684 Cerium Inorganic materials 0.000 description 7
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002866 paraformaldehyde Polymers 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 206010013952 Dysphonia Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 208000010473 Hoarseness Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010040026 Sensory disturbance Diseases 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- GJKFIJKSBFYMQK-UHFFFAOYSA-N lanthanum(3+);trinitrate;hexahydrate Chemical class O.O.O.O.O.O.[La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GJKFIJKSBFYMQK-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0207—Compounds of Sc, Y or Lanthanides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
- B01J35/59—Membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
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- Health & Medical Sciences (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of preparation method of difunctional film removed for formaldehyde and products thereof and application, the film is the activated carbon supported manganese-based catalyst using Modified by Rare Earth Elements as active component, prepared using the method for electrostatic spinning, including the preparation of the activated carbon of Modified by Rare Earth Elements, the preparation of activated carbon supported manganese-based catalyst of Modified by Rare Earth Elements, the preparation of electrostatic spinning solution and the preparation of electrostatic spinning film.The film has the function that absorption and catalysis oxidation at the same time for formaldehyde, so as to reach the effect for removing formaldehyde.The method for manufacturing thin film is simple, low in raw material price, and the removal to various concentrations formaldehyde all has certain effect, has great application prospect in air purification field.
Description
Technical field
The invention belongs to adsorb/be catalyzed environmental technology field, more particularly to a kind of difunctional film removed for formaldehyde
Preparation method and products thereof and application.
Background technology
Formaldehyde be in indoor air pollutants it is most common be also toxicity maximum one of pollutant, be mainly derived from furniture,
Woodwork plate and filler, fabric, coating, wallpaper, carpet even curtain.The content of general newly-decorated its formaldehyde of house can surpass
More than 6 times of mark, is then possible to individually exceeded up to more than 40 times.Measured data illustrates, in the case of normally fitting up, indoor first
The acquisition time of aldehyde can continue 3-15.When concentration of formaldehyde be more than 0.08m3 will cause throat discomfort, hoarseness, it is uncomfortable in chest,
Asthma, dermatitis etc..For a long time, low concentration Formaldehyde Exposed can cause the symptom such as headache, weak, sensory disturbance, immunity degradation, and
The World Health Organization determines that formaldehyde has carcinogenicity, and Long Term Contact formaldehyde can increase the probability for suffering from special cancer.In big compression ring
Today of getting worse is polluted in border, and how the formaldehyde effectively removed in indoor air pollutants is sciences problems urgently to be resolved hurrily.
It is mainly the reagent for spraying or smearing processing formaldehyde currently for the formaldehyde in indoor pollutant, also has and utilize plant
Absorption remove formaldehyde, but its treatment effect is general, and the minute of concentration of formaldehyde is also manual control, when
People can not accurately perceive when concentration of formaldehyde is exceeded.In recent years, the control of PARA FORMALDEHYDE PRILLS(91,95) pollutant is broadly divided into both direction：One
A is the generation for being reduced from source formaldehyde pollutants；On the other hand it is to use air cleaning facility.Control is reduced from source
More environmentally friendly material is mainly developed and used to formaldehyde pollutants, including water paint, environmentally friendly binding agent, environment-friendly sheet etc.
The exploitation of material.But current technology does not still meet the demand in market, it is necessary to develop more environment-friendly materials, so as to reduce
The generation of formaldehyde pollutants.
The content of the invention
For current formaldehyde in indoor air it is seriously polluted the problems such as, present invention aims at：One kind is provided and is used for formaldehyde
The preparation method of the difunctional film removed.
Still a further object of the present invention is：Product prepared by a kind of such scheme is provided.
Another object of the present invention is：A kind of application of the said goods is provided.
The object of the invention is realized by following proposal：A kind of preparation method of the difunctional film removed for formaldehyde, should
Film is prepared using the activated carbon supported manganese-based catalyst that rare earth is modified as active component using the method for electrostatic spinning, including
Following steps：
The first step：The preparation of the activated carbon of Modified by Rare Earth Elements
The activated carbon of certain mass is weighed, according to activated carbon：Water=1:1.2 ~ 1.5 mass ratio weighs a certain amount of deionized water；
According to activated carbon：Rare earth nitrades=1:The nitrate that 0.1 ~ 0.2 mass ratio weighs certain mass is dissolved in above-mentioned deionized water
In；Ammonium hydroxide is added dropwise into the aqueous solution of above-mentioned nitrate until PH ≈ 8 or so；The activated carbon weighed is added in above-mentioned solution,
Ambient temperature overnight impregnates, and is placed in 50 ~ 60oIt is dried overnight in C baking ovens, obtains the activated carbon of Modified by Rare Earth Elements；
Second step：The preparation of the activated carbon supported manganese-based catalyst of Modified by Rare Earth Elements
The liquor potassic permanganate of 0.005mol/L is prepared, the liquor potassic permanganate of the above-mentioned preparations of 1000ml is measured, weighs 20 ~ 30g
The activated carbon of the Modified by Rare Earth Elements prepared in the first step is added in the liquor potassic permanganate of above-mentioned measurement, stirs 1 ~ 3h, is filtered,
It is placed in 50 ~ 60 oCIt is dried overnight in baking oven, obtains the activated carbon supported manganese-based catalyst of Modified by Rare Earth Elements；
3rd step：The preparation of electrostatic spinning solution
Polyacrylonitrile is dissolved in N-N dimethylformamides（DMF）In, the work of the Modified by Rare Earth Elements prepared is added in second step
Property charcoal load manganese-based catalyst, be vigorously stirred 3h, then ultrasonic vibration 1h, obtain finely dispersed electrostatic spinning solution, its
The mass ratio of middle manganese-based catalyst and polyacrylonitrile is 1:12；The mass ratio of polyacrylonitrile and N-N dimethylformamides is 1:4；
4th step：The preparation of electrostatic spinning film
Using step（3）The electrostatic spinning solution of gained carries out electrostatic spinning, obtains a kind of difunctional receiving for formaldehyde removal
Rice tunica fibrosa.
The activated carbon is commercially available activated carbon, and the rare earth nitrades are one in cerous nitrate, lanthanum nitrate and zirconium nitrate
Kind.
The present invention provides a kind of difunctional film removed for formaldehyde, is prepared according to any of the above-described the method.
The present invention provides the application that a kind of difunctional film is used for formaldehyde absorbing and catalysis oxidation.Film of the present invention
The purification of indoor formaldehyde is can be not only used for, the removal simultaneously for particulate matter also has certain effect.The difunctional film tool
There is multiple use, can be used in indoor air purification product, can be used for house wall surface and fit up, during Furniture manufacture.
The method for manufacturing thin film is simple, low in raw material price, has very high practical value.
The present invention prepares a kind of difunctional film removed for formaldehyde, the film PARA FORMALDEHYDE PRILLS(91,95) using the method for electrostatic spinning
Removal can play the role of absorption and catalysis at the same time.The present invention is that absorption/catalysis material is carried on macromolecular fibre, is solved
Catalyst caducous problem on other materials is loaded to, the fiber membrane being woven into using electrostatic spinning have a variety of use
On the way.The film is not only used in air clearing product, while can be applied to the side such as house decoration metope, furniture surfacing
Face.Since the film has the advantages that specific surface area is big, porosity is high, aperture diameter is small, the removal of PARA FORMALDEHYDE PRILLS(91,95) has good effect
Fruit.Since the thin film application is extensive, so that with very high practical value.
It is heretofore described it is a kind of for difunctional film and preparation method thereof that formaldehyde removes compared to existing catalyst,
Have the characteristics that：（1）The film is removed for formaldehyde has the function of absorption and catalysis at the same time；（2）The film has porous
Structure, the removal for PM also have certain effect；（3）The film is urged with the activated carbon supported manganese base of Modified by Rare Earth Elements
Agent is active component, active component stability and activity is all improved using rare earth modification.
Embodiment
Embodiment 1
24g deionized waters are weighed, the six nitric hydrate ceriums of 2g into deionized water, ammonia is added dropwise after cerous nitrate dissolving completely thereto
Water weighs 20g activated carbons and is dissolved in above-mentioned solution, ambient temperature overnight dipping, is placed in 50 until PH ≈ 8oIt is dried overnight in C baking ovens,
Obtain the activated carbon of cerium modification.
The liquor potassic permanganate of 0.005mol/L is prepared, the liquor potassic permanganate of the above-mentioned preparations of 1000ml is measured, weighs
The activated carbon of the above-mentioned cerium modifications of 20g is added in above-mentioned liquor potassic permanganate, stirs 2h, filtering, is placed in 50oDone overnight in C baking ovens
It is dry, obtain the activated carbon supported manganese-based catalyst of cerium modification.
12g polyacrylonitrile is dissolved in 48g N-N dimethylformamides（DMF）In, add in 1g second steps the cerium prepared and repair
The activated carbon supported manganese-based catalyst of decorations, is vigorously stirred 3h, then ultrasonic vibration 1h, it is molten to obtain finely dispersed electrostatic spinning
Liquid.This electrostatic spinning solution is subjected to electrostatic spinning, it is fine to obtain a kind of dual-functional nanometer removed for formaldehyde of the present invention
Tie up film.
Embodiment 2
56g deionized waters are weighed, the six nitric hydrate zirconiums of 8g into deionized water, ammonia is added dropwise after cerous nitrate dissolving completely thereto
Water weighs 40g activated carbons and is dissolved in above-mentioned solution, ambient temperature overnight dipping, is placed in 60 until PH ≈ 8oIt is dried overnight in C baking ovens,
Obtain the activated carbon of cerium modification.
The liquor potassic permanganate of 0.005mol/L is prepared, the liquor potassic permanganate of the above-mentioned preparations of 1000ml is measured, weighs
The activated carbon of the above-mentioned cerium modifications of 25g is added in above-mentioned liquor potassic permanganate, stirs 2h, filtering, is placed in 60oDone overnight in C baking ovens
It is dry, obtain the activated carbon supported manganese-based catalyst of zirconium modification.
12g polyacrylonitrile is dissolved in 48g N-N dimethylformamides（DMF）In, add in 1g second steps the zirconium prepared and repair
The activated carbon supported manganese-based catalyst of decorations, is vigorously stirred 3h, then ultrasonic vibration 1h, it is molten to obtain finely dispersed electrostatic spinning
Liquid.This electrostatic spinning solution is subjected to electrostatic spinning, it is fine to obtain a kind of dual-functional nanometer removed for formaldehyde of the present invention
Tie up film.
Embodiment 3
60g deionized waters are weighed, the 4g lanthanum nitrate hexahydrates into deionized water, ammonia is added dropwise after cerous nitrate dissolving completely thereto
Water weighs 40g activated carbons and is dissolved in above-mentioned solution, ambient temperature overnight dipping, is placed in 60 until PH ≈ 8oIt is dried overnight in C baking ovens,
Obtain the activated carbon of cerium modification.
The liquor potassic permanganate of 0.005mol/L is prepared, the liquor potassic permanganate of the above-mentioned preparations of 1000ml is measured, weighs
The activated carbon of the above-mentioned lanthanum modifications of 30g is added in above-mentioned liquor potassic permanganate, stirs 2h, filtering, is placed in 60oDone overnight in C baking ovens
It is dry, obtain the activated carbon supported manganese-based catalyst of zirconium modification.
12g polyacrylonitrile is dissolved in 48g N-N dimethylformamides（DMF）In, add in 1g second steps the zirconium prepared and repair
The activated carbon supported manganese-based catalyst of decorations, is vigorously stirred 3h, then ultrasonic vibration 1h, it is molten to obtain finely dispersed electrostatic spinning
Liquid.This electrostatic spinning solution is subjected to electrostatic spinning, it is fine to obtain a kind of dual-functional nanometer removed for formaldehyde of the present invention
Tie up film.
Above-described embodiment is some embodiments of the present invention, but the present invention and is not restricted to the described embodiments, other
Any Spirit Essence without departing from the present invention with made under principle change, modification, replacement, combine, simplification, should be equivalent
Substitute mode, is included within protection scope of the present invention.
Claims (4)
- A kind of 1. preparation method of the difunctional film removed for formaldehyde, it is characterised in that the work that the film is modified with rare earth Property charcoal load manganese-based catalyst be used as active component, using electrostatic spinning method preparation, comprise the following steps：The first step：The preparation of the activated carbon of Modified by Rare Earth ElementsThe activated carbon of certain mass is weighed, according to activated carbon：Water=1:1.2 ~ 1.5 mass ratio weighs a certain amount of deionized water； According to activated carbon：Rare earth nitrades=1:The nitrate that 0.1 ~ 0.2 mass ratio weighs certain mass is dissolved in above-mentioned deionized water In；Ammonium hydroxide is added dropwise into the aqueous solution of above-mentioned nitrate until PH ≈ 8 or so；The activated carbon weighed is added in above-mentioned solution, Ambient temperature overnight impregnates, and is placed in 50 ~ 60oIt is dried overnight in C baking ovens, obtains the activated carbon of Modified by Rare Earth Elements；Second step：The preparation of the activated carbon supported manganese-based catalyst of Modified by Rare Earth ElementsThe liquor potassic permanganate of 0.005mol/L is prepared, the liquor potassic permanganate of the above-mentioned preparations of 1000ml is measured, weighs 20 ~ 30g The activated carbon of the Modified by Rare Earth Elements prepared in the first step is added in the liquor potassic permanganate of above-mentioned measurement, stirs 1 ~ 3h, is filtered, It is placed in 50 ~ 60 oCIt is dried overnight in baking oven, obtains the activated carbon supported manganese-based catalyst of Modified by Rare Earth Elements；3rd step：The preparation of electrostatic spinning solutionPolyacrylonitrile is dissolved in N-N dimethylformamides（DMF）In, the work of the Modified by Rare Earth Elements prepared is added in second step Property charcoal load manganese-based catalyst, be vigorously stirred 3h, then ultrasonic vibration 1h, obtain finely dispersed electrostatic spinning solution, its The mass ratio of middle manganese-based catalyst and polyacrylonitrile is 1:12；The mass ratio of polyacrylonitrile and N-N dimethylformamides is 1:4；4th step：The preparation of electrostatic spinning filmUsing step（3）The electrostatic spinning solution of gained carries out electrostatic spinning, obtains a kind of difunctional receiving for formaldehyde removal Rice tunica fibrosa.
- 2. the preparation method of the difunctional film removed as claimed in claim 1 for formaldehyde, it is characterised in that the rare earth nitre Hydrochlorate is one kind in cerous nitrate, lanthanum nitrate and zirconium nitrate.
- 3. a kind of difunctional film removed for formaldehyde, it is characterised in that method according to claim 1 or claim 2 is prepared into Arrive.
- 4. a kind of film difunctional according to claim 3 is used for the application of formaldehyde absorbing and catalysis oxidation.
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